<script setup lang="ts">
import { useAppStore } from "@/store/modules/app-store"
import { DeviceEnum } from "@/enums/settings/device-enum"

import UserAPI, { UserForm, UserPageQuery, UserPageVO } from "@/api/system/user-api"
import DeptAPI from "@/api/system/dept-api"
import RoleAPI from "@/api/system/role-api"

import DeptTree from "./components/DeptTree.vue"
import UserImport from "./components/UserImport.vue"
import { useUserStore } from "@/store"
const userStore = useUserStore()
defineOptions({
  name: "User",
  inheritAttrs: false,
})

const appStore = useAppStore()

const queryFormRef = ref()
const userFormRef = ref()

const queryParams = reactive<UserPageQuery>({
  pageNum: 1,
  pageSize: 10,
})

const pageData = ref<UserPageVO[]>()
const total = ref(0)
const loading = ref(false)

const dialog = reactive({
  visible: false,
  title: "新增用户",
})
const drawerSize = computed(() => (appStore.device === DeviceEnum.DESKTOP ? "600px" : "90%"))

const formData = reactive<UserForm>({
  status: 1,
})

const rules = reactive({
  username: [{ required: true, message: "用户名不能为空", trigger: "blur" }],
  nickname: [{ required: true, message: "用户昵称不能为空", trigger: "blur" }],
  deptId: [{ required: true, message: "所属部门不能为空", trigger: "blur" }],
  roleIds: [{ required: true, message: "用户角色不能为空", trigger: "blur" }],
  email: [
    {
      pattern: /\w[-\w.+]*@([A-Za-z0-9][-A-Za-z0-9]+\.)+[A-Za-z]{2,14}/,
      message: "请输入正确的邮箱地址",
      trigger: "blur",
    },
  ],
  mobile: [
    {
      pattern: /^1[3|4|5|6|7|8|9][0-9]\d{8}$/,
      message: "请输入正确的手机号码",
      trigger: "blur",
    },
  ],
})

// 选中的用户ID
const selectIds = ref<number[]>([])
// 部门下拉数据源
const deptOptions = ref<OptionType[]>()
// 角色下拉数据源
const roleOptions = ref<OptionType[]>()
// 导入弹窗显示状态
const importDialogVisible = ref(false)

// 获取数据
async function fetchData() {
  loading.value = true
  try {
    const data = await UserAPI.getPage(queryParams)
    pageData.value = data.list
    total.value = data.total
  } finally {
    loading.value = false
  }
}

// 查询（重置页码后获取数据）
function handleQuery() {
  queryParams.pageNum = 1
  fetchData()
}

// 重置查询
function handleResetQuery() {
  queryFormRef.value.resetFields()
  queryParams.pageNum = 1
  queryParams.deptId = undefined
  queryParams.createTime = undefined
  fetchData()
}

// 选中项发生变化
function handleSelectionChange(selection: any[]) {
  selectIds.value = selection.map((item) => item.id)
}

// 重置密码
function hancleResetPassword(row: UserPageVO) {
  ElMessageBox.prompt("请输入用户【" + row.username + "】的新密码", "重置密码", {
    confirmButtonText: "确定",
    cancelButtonText: "取消",
  }).then(
    ({ value }) => {
      if (!value || value.length < 6) {
        ElMessage.warning("密码至少需要6位字符，请重新输入")
        return false
      }
      UserAPI.resetPassword(row.id, value).then(() => {
        ElMessage.success("密码重置成功，新密码是：" + value)
      })
    },
    () => {
      ElMessage.info("已取消重置密码")
    }
  )
}

/**
 * 打开弹窗
 *
 * @param id 用户ID
 */
async function handleOpenDialog(id?: string) {
  dialog.visible = true
  // 加载角色下拉数据源
  roleOptions.value = await RoleAPI.getOptions()
  // 加载部门下拉数据源
  deptOptions.value = await DeptAPI.getOptions()

  if (id) {
    dialog.title = "修改用户"
    UserAPI.getFormData(id).then((data) => {
      Object.assign(formData, { ...data })
    })
  } else {
    dialog.title = "新增用户"
  }
}

// 关闭弹窗
function handleCloseDialog() {
  dialog.visible = false
  userFormRef.value.resetFields()
  userFormRef.value.clearValidate()

  formData.id = undefined
  formData.status = 1
}

// 弹窗动画结束后再关闭 loading
function handleClosedDialog() {
  if (loadingSubmit.value) {
    loadingSubmit.value = false
  }
}

const loadingSubmit = shallowRef(false)

function handleSubmit() {
  userFormRef.value.validate((valid: boolean) => {
    if (valid) {
      const userId = formData.id
      loadingSubmit.value = true
      if (userId) {
        UserAPI.update(userId, formData)
          .then(() => {
            ElMessage.success("修改用户成功")
            handleCloseDialog()
            handleResetQuery()
          })
      } else {
        UserAPI.create(formData)
          .then(() => {
            ElMessage.success("新增用户成功")
            handleCloseDialog()
            handleResetQuery()
          })
      }
    }
  })
}

/**
 * 检查是否删除当前登录用户
 * @param singleId 单个删除的用户ID
 * @param selectedIds 批量删除的用户ID数组
 * @param currentUserInfo 当前用户信息
 * @returns 是否包含当前用户
 */
function isDeletingCurrentUser(
  singleId?: number,
  selectedIds: number[] = [],
  currentUserInfo?: any
): boolean {
  if (!currentUserInfo?.userId) return false

  // 单个删除检查
  if (singleId && singleId.toString() === currentUserInfo.userId) {
    return true
  }

  // 批量删除检查
  if (!singleId && selectedIds.length > 0) {
    return selectedIds.map(String).includes(currentUserInfo.userId)
  }

  return false
}

/**
 * 删除用户
 *
 * @param id  用户ID
 */
function handleDelete(id?: number) {
  const userIds = [id || selectIds.value].join(",")
  if (!userIds) {
    ElMessage.warning("请勾选删除项")
    return
  }

  // 安全检查：防止删除当前登录用户
  const currentUserInfo = userStore.userInfo
  if (isDeletingCurrentUser(id, selectIds.value, currentUserInfo)) {
    ElMessage.error("不能删除当前登录用户")
    return
  }

  ElMessageBox.confirm("确认删除用户?", "警告", {
    confirmButtonText: "确定",
    cancelButtonText: "取消",
    type: "warning",
  }).then(
    () => {
      loading.value = true
      UserAPI.deleteByIds(userIds)
        .then(() => {
          ElMessage.success("删除成功")
          handleResetQuery()
        })
        .finally(() => (loading.value = false))
    },
    () => {
      ElMessage.info("已取消删除")
    }
  )
}

// 打开导入弹窗
function handleOpenImportDialog() {
  importDialogVisible.value = true
}

// 导出用户
function handleExport() {
  UserAPI.export(queryParams).then((response: any) => {
    const fileData = response.data
    const fileName = decodeURI(response.headers["content-disposition"].split("")[1].split("=")[1])
    const fileType =
      "application/vnd.openxmlformats-officedocument.spreadsheetml.sheetcharset=utf-8"

    const blob = new Blob([fileData], { type: fileType })
    const downloadUrl = window.URL.createObjectURL(blob)

    const downloadLink = document.createElement("a")
    downloadLink.href = downloadUrl
    downloadLink.download = fileName

    document.body.appendChild(downloadLink)
    downloadLink.click()

    document.body.removeChild(downloadLink)
    window.URL.revokeObjectURL(downloadUrl)
  })
}

onMounted(() => {
  handleQuery()
})
</script>

<!-- 用户管理 -->
<template>
  <div class="app-container">
    <el-row :gutter="20">
      <!-- 部门树 -->
      <el-col :lg="4" :xs="24" class="mb-[12px]">
        <DeptTree v-model="queryParams.deptId" @node-click="handleQuery" />
      </el-col>

      <!-- 用户列表 -->
      <el-col :lg="20" :xs="24">
        <!-- 搜索区域 -->
        <div class="search-container">
          <el-form ref="queryFormRef" :model="queryParams" :inline="true" label-width="auto">
            <el-form-item label="关键字" prop="keywords">
              <el-input v-model="queryParams.keywords" placeholder="用户名/昵称/手机号" clearable @keyup.enter="handleQuery" />
            </el-form-item>

            <el-form-item label="状态" prop="status">
              <el-select v-model="queryParams.status" placeholder="全部" clearable style="width: 100px">
                <el-option label="正常" :value="1" />
                <el-option label="禁用" :value="0" />
              </el-select>
            </el-form-item>

            <el-form-item label="创建时间">
              <el-date-picker v-model="queryParams.createTime" :editable="false" type="daterange" range-separator="~"
                start-placeholder="开始时间" end-placeholder="截止时间" value-format="YYYY-MM-DD" />
            </el-form-item>

            <el-form-item class="search-buttons">
              <el-button type="primary" icon="search" @click="handleQuery">搜索</el-button>
              <el-button icon="refresh" @click="handleResetQuery">重置</el-button>
            </el-form-item>
          </el-form>
        </div>

        <el-card shadow="hover" class="data-table">
          <div class="data-table__toolbar">
            <div class="data-table__toolbar--actions">
              <el-button v-hasPerm="['sys:user:add']" type="success" icon="plus" @click="handleOpenDialog()">
                新增
              </el-button>
              <el-button v-hasPerm="'sys:user:delete'" type="danger" icon="delete" :disabled="selectIds.length === 0"
                @click="handleDelete()">
                删除
              </el-button>
            </div>
            <div class="data-table__toolbar--tools">
              <el-button v-hasPerm="'sys:user:import'" icon="upload" @click="handleOpenImportDialog">
                导入
              </el-button>

              <el-button v-hasPerm="'sys:user:export'" icon="download" @click="handleExport">
                导出
              </el-button>
            </div>
          </div>

          <el-table v-loading="loading" :data="pageData" border stripe highlight-current-row class="data-table__content"
            @selection-change="handleSelectionChange">
            <el-table-column type="selection" width="50" align="center" />
            <el-table-column label="用户名" prop="username" />
            <el-table-column label="昵称" width="150" align="center" prop="nickname" />
            <el-table-column label="性别" width="100" align="center">
              <template #default="scope">
                <DictLabel v-model="scope.row.gender" code="gender" />
              </template>
            </el-table-column>
            <el-table-column label="部门" width="120" align="center" prop="deptName" />
            <el-table-column label="手机号码" align="center" prop="mobile" width="120" />
            <el-table-column label="邮箱" align="center" prop="email" width="160" />
            <el-table-column label="状态" align="center" prop="status" width="80">
              <template #default="scope">
                <el-tag :type="scope.row.status == 1 ? 'success' : 'info'">
                  {{ scope.row.status == 1 ? "正常" : "禁用" }}
                </el-tag>
              </template>
            </el-table-column>
            <el-table-column label="创建时间" align="center" prop="createTime" width="150" />
            <el-table-column label="操作" fixed="right" width="220">
              <template #default="scope">
                <el-button v-hasPerm="'sys:user:reset-password'" type="primary" icon="RefreshLeft" size="small" link
                  @click="hancleResetPassword(scope.row)">
                  重置密码
                </el-button>
                <el-button v-hasPerm="'sys:user:edit'" type="primary" icon="edit" link size="small"
                  @click="handleOpenDialog(scope.row.id)">
                  编辑
                </el-button>
                <el-button v-hasPerm="'sys:user:delete'" type="danger" icon="delete" link size="small"
                  @click="handleDelete(scope.row.id)">
                  删除
                </el-button>
              </template>
            </el-table-column>
          </el-table>

          <pagination v-if="total > 0" v-model:total="total" v-model:page="queryParams.pageNum"
            v-model:limit="queryParams.pageSize" @pagination="fetchData" />
        </el-card>
      </el-col>
    </el-row>

    <!-- 用户表单 -->
    <el-drawer v-model="dialog.visible" :title="dialog.title" append-to-body :size="drawerSize"
      @close="handleCloseDialog" @closed="handleClosedDialog">
      <el-form ref="userFormRef" :model="formData" :rules="rules" label-width="80px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="formData.username" :readonly="!!formData.id" placeholder="请输入用户名" />
        </el-form-item>

        <el-form-item label="用户昵称" prop="nickname">
          <el-input v-model="formData.nickname" placeholder="请输入用户昵称" />
        </el-form-item>

        <el-form-item label="所属部门" prop="deptId">
          <el-tree-select v-model="formData.deptId" placeholder="请选择所属部门" :data="deptOptions" filterable check-strictly
            :render-after-expand="false" />
        </el-form-item>

        <el-form-item label="性别" prop="gender">
          <Dict v-model="formData.gender" code="gender" />
        </el-form-item>

        <el-form-item label="角色" prop="roleIds">
          <el-select v-model="formData.roleIds" multiple placeholder="请选择">
            <el-option v-for="item in roleOptions" :key="item.value" :label="item.label" :value="item.value" />
          </el-select>
        </el-form-item>

        <el-form-item label="手机号码" prop="mobile">
          <el-input v-model="formData.mobile" placeholder="请输入手机号码" maxlength="11" />
        </el-form-item>

        <el-form-item label="邮箱" prop="email">
          <el-input v-model="formData.email" placeholder="请输入邮箱" maxlength="50" />
        </el-form-item>

        <el-form-item label="状态" prop="status">
          <el-switch v-model="formData.status" inline-prompt active-text="正常" inactive-text="禁用" :active-value="1"
            :inactive-value="0" />
        </el-form-item>
      </el-form>

      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="handleSubmit" :loading="loadingSubmit">确 定</el-button>
          <el-button @click="handleCloseDialog">取 消</el-button>
        </div>
      </template>
    </el-drawer>

    <!-- 用户导入 -->
    <UserImport v-model="importDialogVisible" @import-success="handleQuery()" />
  </div>
</template>
